/**
 * @module botbuilder
 */
/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import { Middleware } from './middlewareSet';
import { TurnContext } from './turnContext';
/**
 * Middleware for adding an object to or registering a service with the current turn context.
 */
export declare class RegisterClassMiddleware<T> implements Middleware {
    private _key;
    /**
     * Initialize a new instance of the RegisterClassMiddleware class.
     *
     * @param service The object or service to add.
     * @param key The key for service object in turn state.
     */
    constructor(service: T, key: string | symbol);
    /**
     * The object or service to add to the turn context.
     */
    service: T;
    /**
     * Adds the associated object or service to the current turn context.
     *
     * @param turnContext The context object for this turn.
     * @param next The delegate to call to continue the bot middleware pipeline.
     */
    onTurn(turnContext: TurnContext, next: () => Promise<void>): Promise<void>;
}
//# sourceMappingURL=registerClassMiddleware.d.ts.map